Walking structure of object

Abstract

This invention is a “four-direction moving” structure that can move in all four directions without turning first. It contains two groups of wheels that are arranged perpendicular to one another, i.e. four rows of wheels form a quadrate. Within each group, the wheels turn in the same direction. The conventional circular wheels are replaced with circular eccentric or elliptical or noncircular (e.g. polygonal) wheels so that one group of wheels will not impede movement when the other group of wheels is turning by virtue of the longer diameter of the turning wheels.

1. A walking structure of an object comprising:
 a chassis, 
 a front driving wheel, 
 a left driving wheel, and 
 auxiliary wheels, 
 said front driving wheel and said left driving wheel being circular eccentric wheels or noncircular wheels, 
 said front driving wheel being installed at a front most end of the chassis; 
 an axle thereof being arranged laterally, 
 said left driving wheel being installed at a left most side of the chassis; 
 an axle thereof being arranged longitudinally; 
 the auxiliary wheels being installed on the chassis. 
 
   
   
     2. The walking structure of an object of  claim 1 , wherein the auxiliary wheels comprise a rear wheel and a right wheel, said rear wheel being installed at a rear most end of the chassis, an axle thereof being arranged laterally; said right wheel being installed at a right most side of the chassis, an axle thereof being arranged longitudinally. 
   
   
     3. The walking structure of an object of  claim 2 , wherein the rear wheel and the right wheel are support wheels; the rear wheel and the right wheel being moved by pull or push of the front driving wheel and the left driving wheel. 
   
   
     4. The walking structure of an object of  claim 2 , wherein the rear wheel and the right wheel are also driving and circular eccentric or noncircular wheels, said front driving wheel and said rear wheel being arranged parallelly on the chassis by a first fixing supporter and connected to a front wheel and rear wheel driving mechanism; said left driving wheel and right wheel being arranged parallelly on the chassis by a second fixing supporter and connected to a left wheel and right wheel driving mechanism, the rear wheel runs synchronistically with the front driving wheel; the right wheel runs synchronistically with the left driving wheel. 
   
   
     5. The walking structure of an object of  claim 4 , wherein the front wheel and rear wheel driving mechanism and the left wheel and right wheel driving mechanism are secured on the chassis and each of the front wheel and rear wheel driving mechanism and the left wheel and right wheel driving mechanism comprises a motor, a driving gear, a driven belt gear, a driving belt and two belt wheels; the driving gear is installed on an axle of the motor; said driven belt gear is engaged with the driving gear; the belt wheels are installed on the front driving wheel and the rear wheel, and the left driving wheel and right wheel; said driving belt is installed on the driven belt gear and the belt wheels.